Padlock



(Model.)

S. vMGCARTERI PADLOGK.

Patented Jul 28, 1885.

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DTVBNTOR ATTORNEYS.

UNITED STATES PATENT GEEICE.

SAMUEL MOCARTER, OF LANCASTER, PENNSYLVANIA.

PADLOCK.

SPECIFICATION forming pari; of Letters Patent No. 323,185, dated July 28, 1885.

Application nien october es, 1984. (Model.)

To all whom ibm/wy concern.-

Beit known that I, SAMUEL MCCARTEE, of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented a new and Improved Padlock, of which the following is a full, clear, and exact description.

My invention relates to that class of locks called Scandinavian padlocks,77 and has for its object to provide a secure, simple, and cheap lock, having parts which may be interchangeably assembled to produce iinished locks, which can be opened only by special keys.

The invention consists in particular constructions and combinations ot' parts of the lock, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a sectional side elevation of my improved padlock. Fig. 2 is a sectional elevation taken at right angles to Fig. l. Fig. 3 is a sectional plan view taken on the line a so, Fig. 1. Fig. 4 is a perspective View of the tumbler. Fig. 5 is a perspective view of the tumbler-clutch. Fig. `6 is a face View of one of the key-wards, and Figs. 7 and 8 are face views of the right and left hand stop-wards of the key. Figs. 6, 7, and 8 are drawn to a smaller scale.

The letter A indicates the lock-case, and B is the hasp, which has the short limb b and long limb b', having the notches c c', with which the tumbler C is adapted to engage.

D is a clutch plate or block, which has opposite lugs or projections, d d, which enter the side notches or recesses, c2 c?, of t-he tumbler when its opposite ends, c3 c3, are in the haspnotches c c. (See Figs. l and 3.) The tumbler C has a round boss, c", which enters a ilange, el', of the clutch, on which flange the lugs cl d are formed, the boss serving to center the tumbler as it is moved around by the key, as hereinafter explained. The tumbler C has a central aperture, o5, into which the end bit, e, of the key E enters for turning the tumbler to release the hasp, and the face of the boss c4 of the tumbler, neXt the clutch-plate D, is concaved, as at c, Fig. 2, to avoid adjacent flat sides of the clutch and tumbler, between which a wire or other instrument could be pressed to force the clutch away from the tumbler to carry its lugs cl cl back of the plane of the ends c3 c3 of the tumbler, and allow it to be turned to open the lock; hence the concavit c6 is a safeguard against the ickin of the lock. rIhe face of the clutch D, next the concavity cG of the tumbler, is inclined or beveled at diagonally-opposite edges of its aperture cl3, through which the key passes, as at el* d, Fig. 5, so that the reversely-beveled outer sides or edgesof the key-bit e may ride over the inclines (ZS/and by their cam-action force the clutch back to release the tumbler; and I make the end key-bit, e, with inclined diagonally-opposite edges, as at e2 e2, Fig. 3, so that said bit will not act asv the key is turned, to turn the tumbler-C, to release the hasp until the cam-bit e has moved the clutch back sufficiently, say, a sixteenth of an inch or more, to allow the tumbler to swing clear of the clutch-lugs d cl.

I shoT the lock made with three wards, G H I, which have the same marginal contour at the corners as the clutch D, so that the 'clutch and wards may all lit and slide in grooves a of the lock-case, and these wards G H I have respectively the xed'studs, legs, or flanges g h fi, which space the wards and clutch apart in the lock-case, and a spring, J, acting between the outer ward and the key-hole plate K,holds the wards to each other and forces the Vclutch to the tumbler.

the interior arrangement of the locks, so as to open them by keys having their bits differentially arranged on their stems.

Vlth three wards, as shown, seven 'changes to the dozen locks may be made by inverting the wards. For instance, the ward G may be set to rest by its studs g on the body part of the ward H, instead of the body parts of both these wards lying in contact, as in Fig. l; or the wards H and I may be turned either side up and the key-bits be arranged correspondingly. As the wards are placed in the llock shown the studs g of ward G press on the clutch D, and the studs h of Ward H rest on the inner face of ward I, the studs z' of which project outward.

The key-bits e e e3 e* are double bits, or, in other words, they project one-half from each edge of the key-shank, and the bits e e3 e4 have their opposite cam-faces curving or tapering toward opposite sides of the key, so that whichever way the key may be entered in the lock the wards and clutch will be moved outward by the key-bits on turning the key.

To stop the turning` of the tumbler by the key, when the con cavities cZ of the tumbler face the notches c c of the hasp to allow the hasp to be withdrawn, I form on one of the key-bits (the bit e4, as here shown) the shoulders L L,

which may act either on the shoulders 7L. h of the key-hole or orifice of the ward H, or on the shoulders g g of the key-hole of the ward G. As shown, one of the key-shoulders, L, will stop against a shoulder, 7L', of the ward H when the wards and clutch have been depressed by the key-bits.

The key-holes or orifices of the stop-wards G H are formed with their stop-shoulders g h right and left handed, so that the tumbler will be stopped at the right point by a contact of the `key bit with a shoulder of one of the wards, whichever Way the wards may be placed in the lock with relation to each other.

To open the lock,the key E will be inserted in the key-hole k, and until. its extreme end centers in a concavity, a, of thelock-case, and when the key is turned its bits will, by their cam-action, first draw the clutch from the tumbler and then turn the tumbler until its side eavities,c2 care opposite the hasp-notches c c,when thekey-will be stopped by one of the stopwards, as above described, and the hasp may be drawn outward.

To fasten the look, the hasp will be pushed into the lock-case and the key will be turned the other way to cause its end bit, e, to act on the tumbler to swing it back again until the lugs d d of the clutch will be forced by the spring J into the side concavities, c2 c2, of the tumb1er,'the wards being at the same time carried inward by the spring, and the key may then be withdrawn.

The clutch D may have a lug, d, at one side only, to engage one of the side recesses, cg, of the tumbler; but the construction with two opposite lugs, eZ d, as shown, is preferred.

The lock may have any desired number of key-wards, the three shown being a sufficient number for locks of ordinary size.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A padlock constructed with a notched hasp, a tumbler, C, made with end parts,c3 c3,

adapted to enter the hasp-notches, and with side recesses, c2 and a spring-pressed clutch, D, having side lugs, d (Z, adapted to enter the tumbler-recesses c2 c2, in combination with a key having a bit adapted to force the clutch from the tumbler and a bit to turn the tumbler, substantially as herein set forth.

2. In a padlock, the tumbler C, constructed with parts c3 ci, adapted to enter the haspnotches, side recesses, c2, a key-hole, c5, and a boss, c, concaved at c, in combination with a clutch, D, having a flange, d', in which the tumbler-boss c centers, and lugs adapted to enter the tumbler-recesses c2, and a key-hole, cl3, substantially as herein set forth.

3. In a padlock, the combination, with the lock-case A, notched hasp B, the tumbler C, and clutch D, made substantially as specited, of a series of interchangeable wards, G H I, having studs g h t', respectively, and the spring J, and a key having cam-bits adapted to force the clutch and wards back and turn the tumbler, substantially as herein set forth.

4. In a padlock, the combination, with the loclecase A, notched hasp B, the tumbler C, and clutch D, made substantially as specified, of a series of interchangeable wards, G H I, having studs g h i, respectively, and said wards G H having right and left hand stops g' h formed at their key-holes, and a key, E, provided with cam-bits adapted to force the wards and clutch back, and also provided with stop-shoulders L to act on either ward G H, substantially as herein set forth.

5. In a padlock of the character described, the wards G H, made with studs gh,and right and left hand stop-shoulders g 71.', substantially as herein set forth.

6. In a padlock of the character described, the ward I, made with studs i, and diagonallyopposite beveled edges z" to thekey-hole at its opposite faces, substantially as herein set forth.

7. In a padlock of the character described, the clutch D, constructed to operate iu combination with the tumbler C, as specified, and having diagonally-opposite bevels or inclines d* on itsinner face at the k ey-oriice, substantially as herein set forth.

SAMUEL MCCARTER.

"Witnesses: y

ARTHUR W. McCARrnr., A. F. SHENCK..

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